Dont waste your time buying this product. All the groves are mis-aligned. I ended up hurting my self in assembling the unit and failed to assemble at the end. I have no clue what should i do next since some of the parts go assembled and some didnt since the groves are not properly made.  Really bad product and bad quality. In trying to assemble it some of the parts got chipped off. I can only hope to get a refund now. Since i cant assemble it back in the box to return it.