500ml Rubber Hot Water Bottle

This 500ml hot water bottle is constructed from durable, flexible rubber and fully covered in soft premium faux fur for comfort and insulation. Typical dimensions are 32 cm in length and 19 cm in width, with an empty weight of approx. 350 g. Its extra-wide mouth enables fast, spill-free filling and thorough cleaning. The threaded screw cap creates a secure, pressure-resistant seal — validated through factory leak and squeeze tests. When filled with hot water below 80°C, it delivers steady therapeutic heat for 3–5 hours; as a cold pack, it remains effective after freezing or ice insertion. All units undergo mandatory 24-hour explosion-proof and leakproof certification per UK safety guidelines. Its malleable shape conforms naturally to the body — making it especially effective for relieving tension in the neck, lower back, knees, shoulders, ankles and abdominal area. The integrated dual-pocket design allows hands to stay warm in front pockets while the bottle rests securely in the rear pocket — ideal for seated or reclined use. The faux fur layer also acts as thermal buffer, retaining heat passively for up to 35 hours at ambient room temperature when placed under bedding. Practical applications include pre-warming beds overnight, discreet daytime wear under layers for chronic back pain, or immediate cold therapy for sprains and swelling. Always fill no more than two-thirds full, gently press out air before tightening the cap, and never use boiling water directly — allow cooling to ≤80°C first.