Achieve unwavering stability and balance wherever you go with BEEFY BLOCKS, premium stackable, heavy-duty interlocking leveling blocks.BEEFY BLOCKS 15 pack has everything you need to level dual/triple axle RVs or smaller/similar applications: (10) heavy-duty Beefy Blocks, (5) Red Beefy Caps, (1) Beefy Carrying Strap Dimensions: 8" x 8" x 12" Durable, lightweight, premium construction No-slip interlocking design Convenient carrying handles with strap All weather-approved/UV stabilized Beefy Blocks Lifetime Warranty Use with stack jacks, trailer tongues, fifth wheel jacks, and swing arm supports Made in the USA