Features: increase the contact and then distribute the pressure; effectively prevent the racket from breaking due to high weight; prevent the racket from moving up and down; wire groove design. Threading machine, wire pulling machine, wire pulling machine, high pound protector, badminton racket pressure reducer, tennis racket pressure reducer Suitable for most models of manual threading machines of AEF/ALPHA/EXTHREE/Victory and other brands This badminton racket stringer protects your badminton racket from high tension during stringing. The threading tool is made of durable plastic, which is strong and durable. If your badminton racket has a tension of more than 24 lbs, then you definitely need this tool to protect your racket and prolong its life. feature - Color: Red/Blue/Black/White/Pink - Material: PVC. - Dimensions: 3.55x1.5x1.2cm. - Weight: 2g/pc -Quantity: 6pcs