Twist tips are made of surgical-grade, stainless steel which means there is little to no chance of allergic reaction, no corrosion, no discolouring and no smell. The size is laser imprinted on each tip. Twist tips can be used with Spin nylon and Red cables. 

Tips 1.5 to 2.5 mm fit the Mini size cable.

Tips 2.75 to 5.0mm fit on the Small size cable.

Tips 5.5 to 10.0 mm fit on the Large size cable.