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Bicycle Cycling Bike Wrench Steel Hexagon Spanner Repair Tool Kits Multifunction Wrench Flat Spanner Feature: Multi-specifications, wide application range, using high hardness 45 # steel, hardness, compact and portable. Specification: Size: 5-17mm/0.19-0.66'' Length: 140mm/5.51'' Width: 50mm/1.96'' Thiness: 3mm/0.11'' The opening at both ends is 13mm and 15mm respectively. Internal hole size: 8, 9, 10, 12, 13, 15, 16, 17 mm Material: 45 # Galized Steel Weight: 50g Note: Please allow 1-3cm differs due to manual measurement. Due to the different display and different light, the picture may not show the actual color of the item. Thanks for your understanding.