Sure-Lock latch sets for spa cover straps. Replaces missing or broken cover latches. Prevents children or intruders from tampering with the spa. Also provides protection from potential wind damage to spa covers. Very easy to replace. Set includes (4) buckles, (4) locking latches, (12) stainless steel screws and (2) keys. Buckle fits standard 1" wide spa straps. Easy instructions included. Keep an extra set on hand.