A modular V-support holder including a rigid holder arm and strap, wherein the rigid holder arm and the strap are configured to releasably retain one or more items therein. The holder is attachable to a track mount and the track mount is slidingly received in a mounting track such that the clamp is moveable and adjustable with respect to the mounting track. The rigid holder arm includes a strap post configured to receive a distal end of the strap. The strap is flexible to conform to the one or more items retained in the holder. The track mount is a flexible finger anchor block constructed to be manually deformed and inserted in the track. The mounting protrusion is inserted into a receiving recess of the flexible finger anchor block and the holder is rotated substantially 90° to secure the mounting protrusion and holder into the flexible finger anchor block.