It seems you can use masking tape to stick it to the wall, which is safe for renters or those who don't want to damage their walls. The photo shows one side attached, but the male side is damaged, so it will be removed before shipping. One side of the hook-and-loop fastener and double-sided tape are missing, so please prepare them from a 100-yen shop or similar. Ideal for preventing doors from being left open in homes with pets, and for air conditioning and heating. Type of equipment: Air conditioning/heating supplies