MARTINGALE COLLAR: Safer and more secure than prong collars, this collar tightens when your dog pulls and loosens when he stops pulling to help make sure that the collar is never too tight
quick-snap
Quick-Snap Greenhouse with 8 Shelves – Easy Assembly
EASY ASSEMBLY: Its quick-snap frame takes about 15 minutes to assemble without any tools required, and then install the fitted cover that tie-downs securely to prevent flapping

