SlackBow SlackBlock 14" Athletic Balance Trainer — Compact Portable 14" for 86.2–104 kg Users, Stability & Reactive Control

The SlackBow SlackBlock 14" is a compact, portable balance trainer that builds dynamic stability, coordination, and athletic resilience for better performance and fewer injuries.

The SlackBlock 14" from SlackBow is a stable-yet-reactive training tool designed to challenge balance and engage the whole body. Sized for users between 190–230 lbs, this midpoint model delivers targeted instability that recruits stabilizer muscles, improves proprioception, and translates to more confidence in sport-specific movements. Built in the U.S.A. and used by competitive teams, the SlackBlock is small enough to take to the gym, field, or home while providing a progressive platform for athletes and active people.

How will the SlackBlock help my sports performance?

The SlackBlock forces your body to coordinate multiple joints and muscles at once, improving reactive balance and movement control. That can lead to smoother cutting, steadier swings, and more reliable footwork under pressure.

• Trains ankle, hip, and core stabilizers simultaneously for sport transfer
• Improves proprioception for quicker adjustments during play
• Promotes efficient movement patterns used in running, throwing, and striking

What exercises can I do with the 14" model?

Use the SlackBlock for single-leg stands, dynamic lunges, balance squats, and sport-specific drills. Progress from static holds to slow controlled movements, then to fast reactive drills as your stability improves.

• Single-leg balance with reach or ball toss
• Lateral hops and cutting practice for agility
• Squat-to-press and rotational throws to build power and control

Is the 14" SlackBlock right for my body weight and goals?

SlackBow sizes the SlackBlock to match user weight so the instability is appropriate and safe. The 14" is recommended for athletes or active users who weigh more than 190 lbs and less than 230 lbs; if you fall between sizes, choosing the larger size provides safer progression.

• 14" calibrated for 190–230 lbs to balance challenge and support
• Three-size system (13", 14", 15") allows accurate load matching
• Choose larger size if your weight is borderline for stability and longevity

How portable and durable is this balance trainer?

The SlackBlock is compact, lightweight, and ships in a reusable box for easy transport and storage. It’s built for repeated use by athletes and teams and stands up to gym and field environments, making it practical for travel and daily sessions.

• Small footprint and light weight for home, gym, or travel use
• Durable construction designed for frequent training sessions
• Reusable packaging protects the unit and doubles as storage

Who this is for: The SlackBow SlackBlock 14" suits sport-focused athletes, coaches, and active adults seeking measurable improvements in balance, coordination, and reactive stability. It’s ideal for baseball, pickleball, running, court sports, and anyone wanting a compact tool to supplement strength and mobility work. If you want a progressive, team-tested balance device sized for 190–230 lb users and easy to carry between training locations, the 14" SlackBlock is built to fit into a performance routine without taking up space.