The traditional rubber hot water bottle in red has a 2.5 liter capacity. The larger size of the hot water bottle provides long lasting heat and covers a much larger area than the average hot water bottle . These hot water bottles have a brass thread construction to keep the bottle leak free. Both sides have a cross hatched design. Made in Germany. Great for aches, pains, strains, arthritis, cramps, stress reduction, cold feet, keeping warm and so much more! Made in Germany. Lifetime guarantee. Dimensions are 17" long by 8" wide/42 cm long by 21 cm wide.