3MPerformance Plus Wire Connector R/Y+JUG, Red/Yellow, Flexible Steel Spring Connectors, Copper, CSA Certified, UL Listed, Jug of 500, 22-8 AWG

These are great and a good value.

This wire nut is the best wire nut to carry on a van with limited space , can be used on a wide range of wire gauge.

I'm a master electrician, and a owner of a electrical contracting company. The 3M nuts are the only ones we use on every single jobsite. I love the feel of them, and they hook in perfectly every single time. Yes they are a little larger than your cheap-o nuts, but the labor cost savings is more than enough to offset the cost of a deep box or a 4 11/16. I won't use anything else!

Uou can use these instead of blues on the larger wire sizes I like the blue orange ones cause you can fit 3 # 12's in them and not fill up the box. easy on the fingers.

Always get a good bite on the wires and love the extra rubber skirt on the bottom for that little bit extra protection.

Very high quality, perfect size for just about everything.

This 3M product is well worth the extra money spent over the common rigid plastic wire nuts commonly sold in most home supply stores. The soft pliable shoulders make it far easier to tuck into electrical boxes than the cheaper wire nuts that have flooded the market.

These are some of the best wire connectors I have used in 50 years of wiring. A bit large but great to handle both 2-5 (depending on gauge) wires so easily.My go to unless the box is really crowded.