Grindstone brand heart-shaped screw-in stamps.
 Thread diameter = 5/16"
 Ideal for Impala type skates, Decathlon... with screw-on pads.

 SOLD IN PAIRS

 Are you hesitating between screw-in or adjustable pads? Check your pads! Is there a hole in the center of your pad for a screw? You need screw-in pads.
 No hole, but a threaded rod protruding from the back or the plate, tightened with a washer/nut or an Allen key on the side of the plate? You need adjustable pads (also available as an option on the website).