Cable Glands 50 Pairs JACKYLED Black Strain Reliefs Connectors Cord Grips for Wiring Pendant Hanging Light Ceiling Lighting FEATURE: 50 pairs of black cable glands are standard M10 cable glands that can be screwed into the base of any standard lamp socket (eg, a ceiling mount), perfectly protecting the cable, and not easily loosened or rotated after tightening, so as to effectively improve the service life of the socket. FIREPROOF MATERIAL: Made of high-quality thermoplastic polymer (PBT),They protect wire cord/cable from ignition and keep electrical wiring in good condition. APPLICATION: Perfectly fits for hanging Lights, pendants lights, ceiling lights, glass insulator lights table-top and floor use as well as many other applications, include wiring fans and small appliances. EASY TO USE: Just screw it into the existing fixture and it looks like it's part of the socket, and it will relieve tension at the joint. 2 Parts are needed per cord, one on the canopy and the other on the socket. 100% SATISFACTION GUARANTEE: We strive to provide each customer with the highest standard of customer service to ensure you have a pleasant shopping experience. If you have any issues, inquiries or need assistance, please feel free to contact us directly. 30-day money-back guarantee for any reason, 12-month warranty for quality-related issues. Made of the safest and durable inflaming retardant Plastic on the market, 200 degree heat resistance, they can not be ignite easily. They are CE certificated, you can ease to use. Perfectly protect the cable and not easy to loose or rotate after tightening, so as to effectively improve the service life of the socket. Standard M10 strain relief, perfectly fit for hanging Lights, pendants lights, ceiling lights as well as many other applications, include wiring fans and small appliances. Please allow little color difference due to the screen and light brightness. The size above is measured by hand, please allow 0.1-0.5 inch difference.