PATENTED SIZE ADJUSTMENT - The Innovative design of the holder allows for easy adjustment to fit all common pad sizes from 20" to 32." Simply lift the length adjustment tabs and slide to the desired size for a perfect fit. The Pad Genius SureGrip Pee Pad Holder for dogs is 100% compatible with every brand and pad size from 20" x 20" to 32" x 32" and every size and shape in-between! The optional snap-in Pad Genius SureGrip EXTENSION KIT increases the maximum pad size to a GIANT 32” x 44," perfect for growing pups or multi-dog households. The BUILT-IN LOCK & RELEASE PAD GRIPS make pad removal and replacement EASY TO USE and hassle-free in just seconds. They also HOLD THE PAD SECURELY to the floor, keeping it flat and functional. No sliding, folding, or bunching. The PATENTED CONTAINMENT DESIGN of the holder elevates the non-absorbent perimeter of the pad to direct liquid flow away from the edge and back to the absorbent area of the pad, ensuring 100% OF URINE STAYS ON PAD - even in instances of extended use or multiple dogs where urine runoff can occur from the saturated areas of the pad. The Pad Genius holder can SECURE TO THE FLOOR to prevent puppies and playful dogs from moving or playing with the holder. The included STRETCH RELEASE ADHESIVE FLOOR GRIPS can firmly hold the holder to the floor, while allowing fast and easy removal without leaving any residue or damaging floors. The holder is made from high-quality, non-toxic ABS plastic making it LIGHTWEIGHT, YET DURABLE and secure! The holder sits entirely under the pad. Unlike other puppy pad holders, there is no framework surrounding the pad or grate above the pad that can get saturated with urine. What goes on the pad, stays on the pad and nowhere else. Simply dispose of the used pad and snap a new one in. No cleaning needed, simply built to last through daily use! The Pad Genius SureGrip Pee Pad Holder is 100% adjustable to a perfect fit on any pad from 20" to 32", and all sizes and shapes in-between. The available extension kit takes the max pad size up to 44" x 32". Constructed from high-quality ABS material, our holder is strong, durable and snaps together in just seconds. The patented elevated outer perimeter assures 100% of the urine that goes on the pad, stays on the pad - even when it's used for extended periods. The built-in lock & release pad grips secure the pad to the holder in just seconds. No more pad fold-over or sliding around the floor. Another great feature is that the holder can be secured to the floor with the stretch release floor grips to prevent your puppy or playful dog from moving or playing with the holder. Included with the holder are two sets of stretch release floor grip pads, which are easy to attach and remove, and will not damage the floor or leave any residue.