Description says there are multiple sizes in each box??

The description is wrong -- there is only ONE size included per box/etc. However, each single size can be used for a wider range of different wire size combinations than can traditional-style single-color wire nuts.

I want to wire replacement turn signals on my motorcycle, I dont see how these really work? Anybody clue me in?

Hello! Those wire nuts are intended for residential and comercial wiring, and NOT FOR automotive (cars, motorcycle, etc) use!, in that case you need to use crimp tubes or welding the wires and after that apply shrink tubes. Other wise yoy will experiment troubles. I hope that this information helps you. Best Regards, J. P.

Do these have a round wire spring or square wire spring? I'm joining #10 solid to #10 stranded and am concerned about damaging the stranded.

Same rules apply though; lead stranded slightly....it makes sure the stranded is pinched at the lead point of solid, stays tight to solid shaft so less abrasion to stranded

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3M Performance Plus Wire Connector, Flexible Steel Spring Connectors, 22-8 AWG, Red and Yellow Color (R/Y+), Bag of 100

3M Performance Plus Wire Connector, Flexible Steel Spring Connectors, 22-8 AWG, Red and Yellow Color (R/Y+), Bag of 100

Product ID: 12204084

Details

Color
Red/Yellow
Connector Type
Twist on
Contact Material
Copper
Insulation Material
Polypropylene
Terminal
Twist-on

⚡UL listed up to 1000V for high safety standards

🌈Dual red/yellow color coding for versatile use

🔩Strong biting spring for secure connections

EC$135

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Description

⚡ Connect with Confidence — Power Up Your Projects Like a Pro!

SAFETY FIRST DESIGN - Flexible skirt minimizes copper exposure, enhancing electrical safety and peace of mind on every project.
COLOR CODED EFFICIENCY - Dual red/yellow connectors replace two traditional types, streamlining your toolkit and speeding up jobs.
VERSATILE WIRE COMPATIBILITY - Flexible spring expands to fit 22-8 AWG solid or stranded copper wires, reducing connector variety clutter.
UNMATCHED CONNECTION STRENGTH - Strong biting spring ensures a rock-solid, long-lasting hold in every pigtail application.
CERTIFIED HIGH VOLTAGE PERFORMANCE - UL listed for up to 600V (copper wire) and 1000V in lighting, meeting professional-grade electrical standards.

3M Performance Plus Wire Connectors feature a uniquely flexible steel spring that securely grips a wide wire range (22-8 AWG), combining the functionality of multiple connectors into one. Their dual red/yellow color coding simplifies selection, while the flexible skirt enhances safety by preventing copper exposure. UL listed for up to 1000 volts, these connectors deliver professional-grade reliability and efficiency for all your electrical wiring needs.

Specifications

ASIN	B009SJQG7K
Best Sellers Rank	#90,946 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #467 in Electrical Wire
Brand Name	3M
Color	Red/Yellow
Connector Type	Twist on
Contact Material	Copper
Customer Reviews	4.8 4.8 out of 5 stars (286)
Global Trade Identification Number	00054007431541, 30054007431542
Included Components	Rawlings Bat
Insulation Material Type	Polypropylene & Thermoplastic Elastomer
Item Dimensions L x W x H	3.88"L x 3.88"W x 4.25"H
Item Weight	12 ounces
Manufacturer	3M
Material Type	Copper
Maximum Voltage	1000 volts
Model	R/Y+
Number of Items	100
Part Number	7100136954
Specification Met	UL
Temperature Rating	1000 degree fahrenheit
Terminal	Twist-on Terminal
UPC	054007431541
Unit Count	1 Count

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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Great price for an authentic product. Fast international shipping too!

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EC$135

Duties & taxes included

In stock

Sold byAmazon Saint Vincent and the GrenadinesDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Saint Vincent and the Grenadines.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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