4pcs Hotbed Leveling Spring + 625zz Plastic Pulley + 1M 2*4mm Blue PTEF Tube with 10*25Nuts Kit for 3D Printer Part

Specification Compatible with Creality CR 10 CR 10s mini ender 3 3D printers High quality plastic material durable and sturdy Easy to install and removeNo tools required PTEF tube size 1M Length 2 4mm diameterPackage included 4 x 10 25 Springs Blue 4 x 10 25 Springs Yellow 4 x Nut for CR 104 x 625zz Wheel Roller Bearing4 x PTEF Tube