DELight 100 Pcs End Caps for SPT-1 zip cords are designed to provide a secure and insulated seal for 18AWG SPT-1 wire Designed to fit 18AWG SPT-1 electrical wires, ensuring a snug and reliable connection for your lighting projects Simplify wiring projects with easy-to-use caps. Simply insert the wire end and slide on the cover Crafted from high-quality PC plastic, built to withstand the elements and provide long-lasting protection Overall Dimension(LxWxH) 13/16' x 1/2' x 1/2' (2 x 1.3 x 1.3 cm)