The acrylic tubs are lightweight - I believe this one is about 92 pounds.   That's good - and bad.  I wish that it were bolted to the floor, but when filled with water (well, not even filled), the weight of the water makes it stable.  I love the look.  It is beautiful and fits me just fine.  I can get in and out with ease.  The drain in the bottom is fast and furious.