The is made of iron, plastic material and will not scratch the watch. Repairs can be made more easily. Place the and the watch in order, adjust the upper and lower balance, and ensure that there is no offset. Slowly turn the rotary handle of the watch press tool and press of the watch. Features -Color:Assorted Color -Material:iron, plastic -Size:12.00X9.50X5.50cm/4.72X3.73X2.16in (presser) -Size:4.00X4.00X0.80cm/1.57X1.57X0.31in (round) -Size:3.50X2.20X1.20cm/1.38X0.86X0.47in (square) -Top handle design for precise and controlled pressure application, ergonomic and convenient. -Flexibly control pressure during operation to avoid crushing watch glass. -Suitable for most sizes of press-fit watch repair and battery replacement. -Easy to use and comfortable grip for reduced hand fatigue. Easy and convenient to press watch back cover. -Durable and construction for reliable performance and long-time use. Package list: 1 Tool 12 x Round Molds 6 x Square Molds