Adaptive Tuning Kit Instinct - High Performance Car Engine Tuning Kit for Enhanced Power & Efficiency - Perfect for Racing, Street Performance & DIY Car Enthusiasts

The also you to customize your Graphene Touch Instinct Adaptive tennis racquets to your preference. You can choose between the more open 16x16 string pattern if you're looking for massive spin, or you can take a more traditional approach and keep the 16x19 grommets in.  Not only can you select the string pattern, but you can select between lightweight and heavy grommets to help increase the stability of the racquet. The kit also comes with handle spacers that allow you to extend the racquet in 5mm increments (5mm, 10mm, or 15mm).  The last feature of the kit is a weighted butt cap insert that allows you to add 10 grams of weight to the tail-end of the racquet.

This Kit comes with:
 
3 Grommet Sets
Heavy 16/19 (adds 5 grams / 0.18 oz)
Light 16/16 (no additional weight)
Heavy 16/16 (adds 5 grams / 0.18 oz)
 
3 Spacer Rings
+5mm   (adds 0.2in / .5 cm)
+10mm (adds 0.4in / 1,0 cm) 
+15mm (adds 0.6in / 1.5 cm)

1 Butt Cap
Heavy Butt Cap (adds 10 grams / 0.35 oz)