Bel-art h50028-2001 portable glove box system with 2 gas ports, 1 pair of gloves & 2 clamping rings the operator and the external environment are protected with this lightweight, self-contained portable isolation cabinet. this glove box system is with 2 gas ports. large acrylic window with 6″ circular glove ports permits safe viewing of operations 8″ diameter side port allows easy insertion of material and equipment large size, 22″ long (20″ installed) neoprene gloves (h50029-0000) provide good protection against gas, liquid or solid penetration; secured to the 6″ circular port holes with clamping rings (h50029-0200) body molded from ldpe with round corners throughout for easy cleaning overall dimensions (l x w x h): 68.5 x 33 x 55cm (27 x 13 x 22 in); volume: 126.5 liters (7722 cu. In.)