[NO TIE SHOE LACES] Can save shoes time, seconds to become a pedal shoe.The shoelaces are nice and stretchy, making it easy to get the foot in the shoe.[EASY TO INSTALL] Elastic shoe laces Just wear a shoelace and tighten the screw lock. tie the knot and tighten the screw lock, it is very convenient.Fasten once and never tie your shoes again.Outer Material: SyntheticInner Material: TextileSole: ManmadeClosure: Lace-UpFit Type: Regular[SOLVE THE PROBLEM] Reduce the risk of tripping due to shoelaces loosening; Solve the problem that young children don't wear shoelaces; People who are not comfortable with shoelaces can also easily wear shoes.[PRODUCT PARAMETERS] Length: approx.100cm/pc, One serving contains:2 pairs of laces (4 laces in total)/2 pairs of snap metal buckle (total 4 snap metal buckle).