SOLOOP 300pcs Assorted Crimp Terminals Set Insulated Electrical Wire Connector Kit VARIOUS CONNECTIONS: The package comes with 300pcs insulated terminals and plugs in the most commonly used sizes. MATERIAL: Copper + PVC + TINPLATE Sheath, Copper barrel ensure excellent wire. SAFETY: Wire Connectors Butt Spade Ring Fork Assortment, Durable Insulated Crimp Cable Lugs, provides a secure connection between two leads without soldering. WIDE USE: Wire connectors comes with all you need to make solderless electrical repairs marine speakers,marine amplifier and around the home, shop or outside. WITH A TRANSPARENT BOX: All insulated electrical rings are nicely enclosed in plastic case for easy access and carry with compartments for easy store and carry.