UR Mini Solo Tubes:  .022 slot; Non-Convertible. Direct Bond.0 Torque.A one-piece, one cusp molar buccal tube.Designed to be bonded to the mesial cusp of the 1st or 2nd Molar.Made of Nickel-Lite Material for nickel sensitive patients.One-piece with a compound, contour base with patented Grip-LOK Micro-Etched Base.For partially erupted molars.Pack of 10.