Gravity Three

From BoardGameGeek:

Gravity Three is a fun unique set of games based on the law of gravity. Memory×Gravity - Choose 3 weights to get the heaviest combination. Players take turns testing and lifting the unknown weights and taking 1 of them. With 3 weights you form a digit with 3 numbers. The best 3-digit combination wins! Comparison×Gravity - Outwit your opponents in a 5 round battle to see who can tip the seesaw scale! Chose a location to place one of your 5 weights. But play strategically, as the closer you are to the center of the scale the heavier the weight you will need to tip the balance in your favor. Doubt×Gravity - Outbluff your opponents to get rid of all your weights. Roll the dice to determine the target number. Players can play to add their 'target number' weights in the central tower or pass. Will you be brave enough to call out each other's bluffs? Three games for up to three players using weights with different masses.