Shorter and lighter, Bien-Airs Micro-Series line of attachments offer the perfect balance with exceptional power and versatility.EVO.15 CA 1:5 High-Speed Attachment1:5 multiplier. Patented Cool Touch+ ceramic antiheat push button. FG burs. 4 asymmetrical air and water sprays. Shockproof, stainless-steel small head. Ultraquiet operation. Multistrand optical glass rod. Autoclavable. 500 to 200,000 rpm. 2-year warranty