Size: The size of the two solid rods is 7.87 x 0.79 inches with 3mm and 5mm thick rings Clay Tool Kit: 2 Acrylic Clear Clay Rollers, 8 Thick Rings Material: The two solid clay rollers are made of acrylic material and are reusable. Easy to use: Acrylic rolling pin with thick rings can replace the clay roller machine. The transparent polymer clay roller not hinder the view Practical DIY Clay Craft Tools: Polymer clay tools and supplies for school and home. This is a great sculpture modeling tool for modeling, carving and many other DIY art projects Colour:As Shown Material:Acrylic Accessories color random, don't accept the specified color Package Contents: 1 set * clay rolling pin Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.