This unit attaches to the couch rails with two hand knobs. It can be used above or below the couch.  Six lead blocks with handles are included.  Each lead block weighs 21 pounds and is 8 cm thick x 10 cm square.  A 1/4” high rail mounted around three sides prevents the lead blocks from sliding off. Anterior clearance to top of couch is 30 cm, posterior clearance is 20 cm.  Each unit is custom made for the rail spacing. Please state the manufacturer and the model number of the couch when ordering.

Specifications

Shielded Area: 30 cm  W x 20 cm L x 8 cm H