Cord Lock Toggle Stopper Clip Clamp Plastic Drawstring Buckle Spring Loaded UK. Plastic Spring Loaded Cord Stopper Lock End Ball Black White & Multicolor Toggle. Qty: 10pcs, 20pcs, 50pcs, 100pcs. These toggle cord locks are made from soft silicone material, safe & healthy, full of elasticity, non-toxic & excellent toughness.