Source: [Do It Tennis](https://doittennis.com) [Wilson](https://racquetrank.com/us/tennis/wilson/) # Ultra Power Junior 21 Wilson Tennis · Ultra Power Updated on 10/05/2026 Version · 7 options Ultra Power Junior 21 Change - [Ultra Power Junior 21No price](https://racquetrank.com/us/tennis/wilson/ultra-power-junior-21/) - [Ultra Power RXT 105279 gNo price](https://racquetrank.com/us/tennis/wilson/ultra-power-rxt-105/) - [Ultra Power 100 2021No price](https://racquetrank.com/us/tennis/wilson/ultra-power-100-2021/) - [Ultra Power Junior 19No price](https://racquetrank.com/us/tennis/wilson/ultra-power-junior-19/) - [Ultra Power Junior 25No price](https://racquetrank.com/us/tennis/wilson/ultra-power-junior-25/) - [Ultra Power XL 112No price](https://racquetrank.com/us/tennis/wilson/ultra-power-xl-112/) - [Ultra Power Junior 23No price](https://racquetrank.com/us/tennis/wilson/ultra-power-junior-23/) The Wilson Ultra Power Junior 21 is a 21-inch kids' racquet made of durable, lightweight AirLite aluminum alloy, weighing 179 g strung (6.3 oz). Inspired by the Ultra line, it is small, light and easy to swing, designed for children who are starting tennis. Stop Shock Sleeves reduce vibration, and the racquet comes pre-strung, with a vibrant pink look that appeals to boys and girls. We haven't found offers for this racquet yet. ## Offers We haven't found offers for this racquet yet. ## Price history Not enough price history yet. ## Strengths and watch-outs ## Pros - 179 g: light and easy for children to swing - AirLite alloy: light and durable - Comes pre-strung: ready to play ## Cons - 21 in length: only suits small children - Aluminum frame: designed for those who are just starting out - Levels: Beginner ## Specs | Weight unstrung | No data | Medium confidence | | --- | --- | --- | | Weight strung | 179 g | Medium confidence | | Head size | No data | Medium confidence | | Length | 21 in | Medium confidence | | Balance point | No data | Medium confidence | | Swingweight | No data | Medium confidence | | Stiffness (RA) | No data | Medium confidence | | --- | --- | --- | | String pattern | No data | Medium confidence | | Frame thickness | No data | Medium confidence | | Material | AirLite alloy (aluminum) | Medium confidence | | Recommended tension | No data | Medium confidence | | Grip sizes | No data | Medium confidence | ## Store reviews We have not gathered store ratings for this racquet yet. Read buyer opinions directly at the store. ## Community 0 review(s) and comment(s) No reviews yet. Have you played with the Ultra Power Junior 21 Wilson? 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