The stackable block design lets you fine-tune the height instead of relying on one fixed setup. Do not use with wheels or rounded bases unless the machine can sit securely.
4-Pack Treadmill Incline Riser Blocks, Stackable Treadmill Riser Incline Bloc...
4-Pack Treadmill Incline Riser Blocks, Stackable Treadmill Riser Incline Blocks,
4 Pack Treadmill Incline Riser Blocks, Stackable Treadmill Riser Incline Bloc...
4-Pack Treadmill Incline Riser Blocks for Leveling & Uphill Training
PHULWEL 4-Pack Treadmill Incline Riser Blocks, Stackable Height Black
