Penn QST 36 Foam Tennis Balls 12 Pack
- 12 balls per package
- 36 foot court, players 8 and under
- High-density foam, lightweight
- Modified bounce, oversized diameter
- Endorsed by USPTA teaching pros
- 13.44 ounces package weight
Last refreshed Sep 28, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A twelve-ball pack of foam teaching balls for beginners on the smallest junior court. The ball is oversized and low bouncing, so older or experienced players will outgrow it quickly.
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ASIN: B00559AUTCModel: QST 36 FoamCategory: Tennis Balls
Overview
Not a full-speed tennis ball, this is a lightweight foam teaching ball made for beginners on a junior court. High-density foam gives a modified bounce, and the oversized diameter makes the ball easier to learn with.
Coaches and parents get a dozen foam balls built for the first stage of learning, with a slower, lower bounce and a larger body than a standard ball. The listing is silent on warranty and the target is only the youngest beginners.
Who it's for
Junior programs, school lessons and parents running first lessons for the youngest players. Kids who already rally comfortably, or older players, need a faster ball for a longer court.
Pros and cons
- Lightweight foam is gentle
- Oversized for easy tracking
- Modified low bounce
- Twelve balls per pack
- Only for the youngest beginners
- Short court use only
- Warranty not listed
Performance notes
High-density foam is light, so the ball travels slowly and bounces lower than a full-speed ball. The larger diameter makes it easier to see and to meet with the racquet, which helps beginners build timing on a short court.
Specifications
| Brand | Penn |
|---|---|
| Model | QST 36 Foam |
| Dimensions & fit | |
| Intended court | 36 foot court |
| Item weight | 13.44 ounces |
| Capacity & performance | |
| Age Range Description | Beginners 8 and under |
| Construction & materials | |
| Material Type | Foam |
| Color | Yellow with Red Dot |
| Core Material | Foam |
| Included components | |
| Unit Count | 12 |
| Other details | |
| Approval | USPTA Teaching Pro Organization |
Frequently asked questions
What comes in the Penn Quick Start 36 foam pack?
A package of 12 foam tennis balls.
Are Penn Quick Start 36 balls pressurized?
They are listed as foam through and through. The listing mentions no pressurization.
Can adults use Penn Quick Start 36 foam balls?
The description targets beginning players 8 and under on a 36 foot court.