General description With the Relaxdays hot water bottles, you'll never have to slip into a cold bed at night again. Nicely pre-warmed, even icy feet will be comfy and warm. These bed bottles also relieve back pain, neck tension, or abdominal pain, making them suitable for both children and adults. Technical specifications Overall dimensions (H x W x D): 36 x 18.5 x 4 cm Opening diameter: 2.3 cm Material: Natural rubber, plastic cap Capacity: 2 L Weight: 320 g Color: Grey Set includes: 9 hot water bottles without cover Usage Fill with hot water for heat treatment For cold treatment and cooling, simply use cold water Wrap the bottle in a cloth or use your own cover if it is still too hot Other information Safety instructions: Do not fill with boiling water as there is a risk of burns Children should only use the hot water bottle under adult supervision Easy to clean