TRU COMPONENTS BH980 Battery tray 1x 9V PP3 (L x W x H) 24 x 17 x 26 mm

Spring holder clip, PP3 size battery, 24mm long, 17mm wide, 26mm high, A spring metal clip for physically holding PP3 batteries, single M3 fixing hole, comfortable.

Price: £ 0.56 from Conrad Electronic