PROFESSIONAL WATCH PREE SET – The watch tool is made of steel and the 12 assorted dies are made of ABS plastic material that not scratch or mar crystals. 12 dies that can be use for most diameter watch WATCH BACK REMOVER TOOL – The watch battery replacement tool kit with adjustable tempered tips that adjust from 13 mm to 56 mm, and the watch case opener pry help to make opening cases easier by simply placing the blade under the case back and pry it off Watch case wrench: Size: 70 mm x 28 mm x 11mm Adjust range: 12mm - 57mm Watch dies: Size: 12 sizes that fit for 18mm to 50mm watch (50/48 mm 46/44 mm 42/40 mm 38/36 mm 34/33 mm 32/31 mm 30/28 mm 26/24 mm 23/21 mm 20/18 mm) Watch case opening pry bars: Size: 8.5 mm x 4.5 mm x 2 mm Watch wipes cloth: Size: 15 cm x 15 cm colour:Color as shown Material:plastic Package Contents: 3 x Watch case tool 36 x Assorted sizes Mold 3 x Watch case opener 3 x Watch case opening pry bars 3 x Watch wipes cloth 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.