fell apart before it reached my house [SEP] this is very poorly made the smaller roller wasn t even connected to the tool when i opened the box i managed to get it back on the wires but it keeps coming off the worst thing about this tool is the grinding that is heard and felt as you attempt to roll it across your skin other brand of this tool i have looked at have a bar that goes all the way through a hole drilled through the stone roller this one has small indentions drilled in each end of the roller and two wires that clamp into the roller settling into the indentions when you try to roll it the metal grinds into the stone and this makes for a very rough and unpleasant sounding massage i thought the whole point to these type of tools it to pamper and relax the user not make them feel like they are surrounded by chalkboards being assaulted by fingernails