No clips, no holes, no fussy buckles. This is our single layer, ultra flexible, nylon and velcro strap. This strap is standard with our BK31 watch, but the fun colors mean it's a great accessory for the BK33 as well.  With a fluffy, grabby velcro and thin profile, this strap is uniquely suited to the small wrists that require a flexible strap to wrap easily.