Big gelatinous cube D20 squishy dice. These are bigger than a standard d20 but not as big as the giant d20. 
They have various hand made silicone bones scattered throughout OR a full squishy skeleton. The bones and skeleton are made of the same silicone as the dice so it will not effect the balance. 
Comes with a plastic case to keep it clean but can be washed with regular soap and water. 
These are not food safe. Please do not put them in your mouth.