Allstar 1/4 inch I.D Aluminum Clamp-On Style Universal Line Clamp (Pack of 4) are a clamp-on style with a 1/4 inch i.d. It has 2-piece quality aluminum clamps that dresses up wiring or hard fluid lines. It is sold in one set of 4 pieces. Other sizes are available and are sold separately. It is backed by a 90-day limited factory warranty.