MicroLegend® 0.69 100 95 Nylon Microfilament Proprietary Microfilaments Diamond Blue with Red/Blue Crosses, Natural with Red/Blue Crosses World Class Playability MicroLegend® XL 0.73 96 100 Nylon Microfilament Proprietary Microfilaments Diamond Blue with Red/Blue Crosses, Natural with Red/Blue Crosses World Class Playability and Durability PowerGut® 66 0.66 100 96 Nylon Microfilament Proprietary Power Filaments Power Orange Power Green Neon Orange Neon Green Revolutionary Power/Playability Combination with PFT TM Textured Surface PowerGut® 65 0.70 98 100 Nylon Microfilament Proprietary Power Filaments Power Orange Power Green Neon Orange Neon Green Revolutionary Power/Playability Combination with PFT TM Textured Surface MicroPower® 0.70 100 96 Nylon Microfilament Proprietary Power Filaments Titanium White, Orange, Blue, White Revolutionary Power/Playability Combination with PFT TM Smooth Surface MicroPower® XL 0.73 98 100 Nylon Microfilament Proprietary Power Filaments Orange, Blue, White Revolutionary Power/Playability Combination with PFT TM smooth Surface  Flex 21® Micro  0.70 95 95 Nylon Multifilament Standard Monofilaments Natural and Gold Micro Gauge Construction with Superior Playability  Flex® Micro  0.75 92 98 Nylon Multifilament Standard Monofilaments Natural and Gold Micro Gauge Construction with Superior Durability Rally® 22 0.68 95 95 Nylon Microfilament Standard Monofilaments Metallic Silver Titanium White Electric Blue Superior Micro Gauge Tournament String Rally® 21 Micro 0.70 95 93 Nylon Multifilament Standard Monofilaments Natural, White, Purple, Optic Yellow, Lime Green Optimum Value in Micro Gauge String Rally® 21 0.75 92 98 Nylon Multifilament Standard Monofilaments Natural, White, Purple, Optic Yellow, Lime Green, Titanium White Optimum Value for All Players Rally® 20 0.85 90 100 Nylon Multifilament Standard Monofilaments Natural and White Optimum Durability for Recreational Players