Made of ABS resin and POM resin, durable and quality. 3.4 / 2.5 / 1.8 / 1.4 inches (3.5 / 4.5 / 6.5 / 8.5 cm), this pump making kit has 4 sizes for different project needs and size in designing and making lint balls. Easy to make the beautiful plush ball. All you need are yarns, strings and scissors to complete your pom poms and plush balls. Can create endless interesting works. Easy to use with the help of teaching - by adults and children. Arts, Crafts DIY Kits, Great for making doll, pumps, wall art, flowers, clothing/shoe embellishment, door mats, rugs, decorations, etc. Wonderful gift for your friends who love made. Product Description Product name: hair ball maker Hair ball material production: wool velvet mainly Essential tools: wool, small scissors. Diameter: 3.5 / 4.5 / 6.5 / 8.5 cm Weight: about 95 g Material: plastic Package including: 1 * 4 sizes essential pom-pom Maker plush ball Weaver DIY Needle Craft Tool Kit (random color)