This handpiece comes with the Foredom® Brushless Micromotor System (510-2929). It is ergonomic and constructed with a comfortable coated rubber grip. Designed with a "twist" quick-change mechanism to easily change your burs/tools in a matter of seconds. This model can change between collets (3/32" and 1/8" collets included) quickly and easily. Handpiece is 6.5" (165mm) long, 1.125" (29mm) diameter at the thickest end, 0.5" (13mm) diameter at the nosecone, has a 5' (152.5cm) long handpiece cord and weighs 11.5 oz. (0.33kg). Made in China.