ABS engineering plastics have excellent wear resistance and oxidation resistance. All-day gaskets are durable and waterproof Anti-high temperature Anti-flame retardant Overall solid and durable Support length 40/45/60mm, single needle or double needle heat shrinkable tube Product Name:Optical Fiber Butt Protection Box Applicable Interface:SC//LC/ST Working Temperature:-40-85 Product model:FPB- Colour:Black Material:plastic Size:160mmx48mmx10mm Package Contents: 10 * Optical Fiber Protection Box Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.