The Pucks rất hiệu quả với mâm đĩa nhựa và thiết bị nặng ký
Mk3 or Mk4 (sets of 3 or 4, with studs)
Approximately 2.75" diameter with a 1/4-20 threaded
hole all the way through the piece, countersunk on both sides. The
Puck can be used as a Cone cup, or screwed together with the Cones,
providing unprecedented versatility and performance. .75" and 1.5"
1/4-20 stainless studs are included.