Heat preservation foam mat to be placed under the Hot Tub & Spa for preserving the heat. Waterproof material. Connect each piece to make a round mat (9pcs/pack). Protect your spa and deck. Save energy by providing thermal barrier. The round Hot Tub & Spa is for 6 people.
- Foam mat to prevent heat loss
- Waterproof material.
- 9 pieces that fit into one another to make full mat