Selected Material: These elastic no-lace shoelaces are made of elastic cord, tear-resistant, good elasticity, rust-proof and never fade. Comes with 2 Silver Metal Capsule Links for high quality and durable. No Laces Needed Worry: Excess laces won't trip us up. It solves the trouble of not being able to tie shoelaces, and also solves the problem of shoelaces getting loose. It is especially suitable for the elderly with limited mobility and children who cannot tie their shoes. External Material: None Internal Material: None Sole: None Convenient and quick: the elastic shoelaces just put on the shoelaces and tighten the screw lock. Tie a knot and tighten the screw lock, very convenient. Tie it once and never have to tie your shoelaces again. FITS: Our no-tie shoelaces are perfect for kids, adults, seniors and everyone in between. Great for runners, walkers, athletes and people with disabilities. Matching: This lazy shoe lace replacement and buckle is suitable for all kinds of sports shoes, casual shoes, cloth shoes, work shoes, suitable for men and women, more suitable for children. Suitable for DIY.