Relax and soothe your muscle pain with this dry hot water bottle, filled with wheat grains. Measurements: 10 x 21 cm Tips for use: To soothe thanks to heat: Place the cushion for 2:30 seconds in the microwave with a mug of water Enjoy 30 to 40 minutes of heat To soothe thanks to the cold: simply place your hot water bottle in the freezer Care instructions: machine wash the cover at 30°, use of the dryer is not recommended.