Item Type: Projectile Material: Stainless Steel Scope of Application: Pneumatic shock wave pain relief therapy machine Quantity: 5pcs Use Position: Inside the handle of the physiotherapy devic 1Wide Range Of Use: Suitable for most pneumatic shock wave therapy machine, projectile needs to be installed inside the handle of the physiotherapy instrument. 2Easy To Install: No complicated tools and procedures required, directly replace the old or broken one, important parts for ED therapy instrument. 3Replacement Parts: 5pcs of projectile are available, can be replaced at any time, quickly solve the problem of handle failure, and make the instrument run more smoothly. 4Multiple Applicable Place: Light weight and in small size, easy to store and carry, can be easily put into your bag, suitable for home, massage shop and other places. 5Stainless Steel Material: Projectile is made of high quality stainless steel material, not easy to deform, corrosion resistant and rust proof, firm and sturdy, durable for use.5 x Projectile