Electrical Lockout Device made in two parts with locking arrangement of Polycarponate material Lower outer base size - 35 x 35 mm having innier hollow portion of sixe 27.5 x 27.5 mm upper part- of size - 35mm x 40 mm --with provision Can add group lockout devices in specific hole--Size in inch Outer Base:1.38" x 1.38" Inner Base:1.08" x 1.08" Upper Interior: 1.38" x 1.57" Contact Us Enquire Now