Mudder Watch Repair Tool Back Case Holder Adjustable Opener Remover, Yellow 100% Brand new with high quality material. With 4 hard plastic pins. With 4 adjustable pile will be fixed into place large case Reducing the risk of sliding and scratching the back cover of the watch The bearing with 4 adjustable nylon pile vise can be arranged on the table or table Fixed watch table can adjust the size.Fixed maximum watch dial  4.8 cm in diameter or  1.88 in.It measures approximately 5.5 x 4.5 x 3.5cm.