UNIMARM, Weight: 44.5 oz. Contents: Base Plate UNIPLA Weight-12.6 oz, 9.6 x 3.2 x 1.6". The UNIPLA Base plate is the foundation for many of Novoflex"s new flash bracket systems ofinnovative lighting control. It has a wide stable camera platform with two angled edges that accept various arms, ballheads as well as other accessories with either 1/4"-20 or 3/8"-16 screws. 2 Flexible Arms of 19.5" length. Arms Weight 15.9 oz. each. Both Arms sport a small ballhead that has a flash accessory shoe. Solid enough to hold in place with even the heaviest of shoe-mounted flash units even at precarious angles. The flexibility of the arms allow total articulation as needed.