Product Features Handle Material:Stainless Steel Blade Material:Stainless Steel Usage:Woodworking, Engraving Craft Function:Mobile Phone PCB DIY Repair Type:Metal Scalpel knife Feature:Non-slip Handle, Sharp Blades Handle Length :145mm (3#) 147mm(4#) Blade Length:45mm(11#)50mm (23#) Blade Model: 23# 11# Blade Material: Carbon Steel Handle Type: 3# 4 # Handle material: stainless steel or Plastic Pls Pay attention : 1 bag = 10pcs blades Your Packing List include: 3 # blade handle 1pcs+11 # blade 10pcs 4 # blade handle 1pcs+23 # blade 10pcs Iron box * 1 As Below About Shipment We will ship your package within 1-2 working days. We may change the shipping method: Consider of the customs, remote address and shipping speed. Warranty &Return Our store provides free replacement for orders within 30 days from delivery date. For orders from 1 to 12 months, you have to pay some parts of order value to get replaced. For order older than 12 months, we will give small discounts. Our Service time Our Working time is Monday to Friday 9:00 AM to 6:30 PM BeiJing Time. All orders will not be processed at the weekend and holidays. Feedback Please contact us first if you have any problem,i will reply you within 30 minutes during working time.We promise you to solve your problem within 24 hours.