Note: the 'shampoo' impression on the top of the bar will wear down over time so if you also purchase the solid conditioner bar - a great way to remember which is the shampoo and which is the conditioner is our little rhyme: BLUE is SHAMPOO because blue rhymes with shampoo, making the light green bar the conditioner.
The weight of each shampoo bar is as follows:
Small is approximately 52 g or 1.9 oz., Medium is approximately 70 g of 2.5 oz. and Large is approximately 82g or 2.9 oz.
The dimensions are as follows:
Small is approximately 63 mm or 2.25 inches in diameter and 19 mm or .75 inches thick, Medium is approximately 70 mm or 2.75" in diameter and 19 mm or .75" thick, and Large is approximately 70 mm or 2.75" in diameter and 25 mm or 1" thick.
The inspiration for this came from a friend who asked me if I could make her a solid shampoo & conditioner bar like the ones from Lush. We did one better - ours is sulfate-free for the same price.