Easily attach these Pushers or Helping Hands to any rack that has the chip holders with black rubber tips. Now you can easily push your wall of tiles out. You wont’ have to try and hold your card against your rack and push- hoping your tiles do not fall off. These Helping Hands will only fit the racks with the 4 prongs at the end. The pushers measure 18 1/2 total from the chip holder and 16″ for the portion of the rack from the chip holders.