Each strand for our checker slabs are cut and laid by hand. Once done baking and sanded, each piece is finished with resin for an added shine. Assembled with stainless steel silver (nickel-free) stud posts and ear nuts. Earring Drop Length: 0.75 inch (1.905 cm) Care Instructions: To avoid discoloration of resin, store away from direct sunlight. Although hardware is water and tarnish-proof, it's best to remove jewelry prior showering or swimming to ensure long-lasting pieces.