DescriptionResin is not plastic. It is a better material and looks like glass. These easy to use crystals are best for both professionals and DIY enthusiasts. These rhinestones can be used in a number of projects such as dress making, jewelry making, embellishing clothes, costumes, bags, shoes, cards, wedding dresses etc.Features- Color: AB color. - Material: Resin. - Size: Approx. 1.7 x 2.8cm/ 0.67 x 1.1 inch (LxW). - with gorgeous color. Perfect to embellish a variety of items.- These crystals are flat back with holes, so either sew them or glue them on to any surface. - Proper size with attractive appearance. Great for costume decoration at Halloween, Carnival, Cosplay, Stage Performance, etc.