Matsushita Electric Works Okitatami (Floor Tatami Mats) - Light Gray These are Okitatami from Tatami-ga-oka, which create a Japanese-style space in a corner of your room. They were used as a Japanese space by placing only the Okitatami part on the flooring. They were used without being fixed to the floor, but those who are concerned (not suitable for children or the elderly from a safety perspective) should refrain from purchasing. Living Room Dining Room Okitatami - Light Gray Manufacturer Model Number: MHJB4K2E Body Width: 848mm Body Length: 848mm Body Height: 15mm Quantity: 4 mats Material: Polypropylene Weight per mat: Approximately 4 kg Weight for 4 mats: Approximately 16 kg There are stains, scratches, and deterioration due to use. Please understand this before purchasing. Set of 4 Although they are not the same, there are similar gray-colored Okitatami available (8 mats in total), so please take a look if you'd like. They were arranged in a checkered pattern with 8 mats.