Example pictures show one unit attached to a 470uf 25v Capacitor and 20awg wire. Capacitor, wires, and XT30 are not included. EDA by Olaf Hichwa.

Weight: 0.6g (+/- 10%) per unit,  2.6g per set of 3 units (+/- 10%)

Dimensions: Each unit is 20mm x 16.4mm (+/- 10%), and 1.6mm thick (+/- 10%)