1、Replacement Parts: Reasonable structure, exquisite craftsmanship, attention to detail, wonderful replacement for the old or broken one, fit well. 2、Fitment: Compatible with most dental handpieces, compatible for NSK handpieces, contra angle head with movement and shaft, simple and practical. 3、Easy Installation: Important and necessary accessory for dental handpiece, easy to install, no complicated tools and operations are required. 4、Multiple Applicable Place: Light weight and in small size, easy to store and carry, can be easily put into your bag, suitable for professional dental clinics and hospitals. 5、Stainless Steel Material: Contra angle head is made of excellent stainless steel material, rust proof and corrosion resistant, anti impact and wear resistant, durable.