This band comes with a Quick Release bar pin on both ends, which locks onto the watch case precisely and securely.
These silicone bands are made of durable and soft silicone, waterproof, elastic, lightweight, and environment-friendly. Soft & Durable Silicon StrapBreathable and washableQuick Release Bar pinPin-N-Tuck ClaspSweat-proof and waterproofSuitable for wrist sizes from 6 to 8 inches (150 mm to 210 mm) This one snaps correctly inside and locks in place. Sport Style Dual Colors Silicone Watch Bands with Quick Release Bar for Size 20mm 22mm Replacement Bracelet - Black/Gray, 20 mm Sport Style Dual Colors Silicone Watch Bands with Quick Release Bar for Size 20mm 22mm Replacement Bracelet - Black/Gray, 20 mm. It can effectively prevent the bands from falling off and becoming loose.