Material: stainless steel,plastic Can be used to repair or screw up screws for eyeglasses, sunglasses, watches, cellphones and other precise devices. 4 in 1 Screwdriver: Flat Head Screwdriver / Screwdriver / Star Nut Driver/ Keychain. Case Size: ()109*64*15mm; Length of Screwdriver (without Keychain): About 6cm; Keychain Diameter: About 2.3cm This Tool Set Is Used For Fixing Glasses Or Watches. Equipped With A Box Of 1000PCS Small Screws And A 4 in1 Screwdriver, This Tool Set Will Help You Fixed Your Glasses And Watches In A Useful Way. Weight: About 74g : 1000pcs Color: Silver Screwdriver Features: This Multi-functional screwdriver Is Applied For Repairing Glasses And Watch Widely. With a keychain, Portable And Easy to Hang Screw Type: Sharp Tip 1.0*3.6 Screw 2.0*2.4 Screw 2.0*2.6 Screw 2.0*2.8 Screw 2.0*3.0 Screw 2.0*3.2 Screw 2.0*3.4 Screw 2.0*3.6 Screw 2.0*3.8 Screw 2.0*4.0 Screw 2.0*4.5 Screw 6.0 Pad 8.0 Diamond 4 in 1 Screwdriver Package included: 1000 x Eyeglass Screw Accessories 1 x Screwdriver 1 x Tweezers 1 x box Only the above package content, other products are not included. Note: Light 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.