a cable supporting and spacing device utilizes a block of insulating material to space apart two cables , when the device and portions of the cables are partially encased within a closed loop formed by a flexible strap . the device is provided with at least a pair of projections extending outwardly from the surface thereof for &# 34 ; snap - in &# 34 ; like engagement of the strap to the block , thereby facilitating convenient installation of the device when installed between the two separated cable portions .