Specs for Wilson Blade 98S (18x16) Countervail
| Strung weight | 11.1oz / 311.84g |
| Balance | 1 pt Head Light |
| Head size | 98 sq. in. / 632.26 sq. cm. |
| Stiffness | Average - 52% (65 RA) |
| Recommended tension | 50-60 pounds |
| Swing weight | 329 kg · cm2 |
| String pattern | 18 Mains / 16 Crosses Mains skip: 8T,10T,8H,10H One Piece No Shared Holes |
| Length | 27in / 68.58cm |
| Beam width | 21mm / 21mm / 21mm / |
| Composition | Braided Graphite & Basalt |
| Power level | Low-Medium |
| Stroke style | Full |
| Swing speed | Fast |
| Colors | Black/ Green |
| Grip type | Wilson Sublime |