The Universal Holder has 3 set screws that tighten in a triangular pattern to secure most objects up to a maximum of 1/2 in diameter. Weighs approximately 7 ounces. Includes allen wrench. Overall diameter is 1 1/8 (3 cm). Length is 5 1/4 (13,5 cm). The toothbrush shown is an Oral B and the razor is a Gillette Trac II. Toothbrush and razor are not included.