Who it may suit
Players who want a lighter ball for stationary indoor handling and accept a different feel from a game ball.
Who should consider another option
Players who need a regulation-weight practice substitute, or a verified youth circumference.
Verified product specifications
| Brand | In The Lab |
|---|---|
| Model | 4.0 |
| Construction | PU foam |
| Size / circumference | Men’s size; exact measurement not stated |
| Stated mass | 325 g* |
| Intended use | Indoor dribbling and handling |
| Manufacturer-listed surfaces | Carpet, Hardwood |
| Testing status | Research only; not physically tested |
Reasons to consider it
- Airless construction needs no inflation
- Manufacturer identifies carpet and hardwood use
- Lighter stated mass may suit relaxed handling practice
Know the limitations
- Weight differs between official pages (315 g vs 325 g)
- A lighter ball will not reproduce game-ball feel
- No independent noise or durability measurements
Noise, bounce & indoor suitability
Foam construction is designed to soften impact, but we do not have a comparable independent sound measurement for this model. Floor vibration can still carry to another room or apartment. A seller’s “silent” description is not proof that neighbors cannot hear it.
Rebound changes with the ball and surface. Start with controlled stationary dribbles on a clear, dry, stable floor. Inspect the ball and stop if the surface feels slippery or the foam is damaged. Check the manufacturer’s care guidance before cleaning.
Where to buy
These links identify researched destinations. Confirm the model, size, seller, returns, price, and current availability at checkout. We do not sell or fulfill orders.
Confirm current weight and variant.
Listing checked October 21, 2026 · price and stock at destination
Questions before ordering
Is this a replacement for a game ball?
Treat it as a companion for indoor handling. The construction and rebound differ from an inflated basketball. Continue some practice with your game ball on a suitable court.
How should I check the fit?
Use our size finder as a qualified starting point, then confirm the exact variant dimensions and your league’s requirements.
Evidence & research limits
We read the sources below on October 21, 2026. We have not physically tested this product or verified comparative noise claims. This article distinguishes published specifications from editorial selection advice.
Read our full research methodology and compare these specifications side by side.