The world's first string technology that infuses polyester with Silicone oil, allowing for better string movement at the point of contact. Yonex's Silicone oil infused Filament (SIF) Technology greatly reduces friction between strings along with a swift recovery of the string bed that increases ball speed and spin.
Web Description: Yonex Poly Tour Fire
Composition: Monofilament Core finished with high polymer Polyester
Gauge: 16g/(1.30mm), 16L/(1.25mm), 17g/(1.20mm)
Tennis Strings & Stringing Strings Yonex - BYPTF.1.25 - Yonex Poly Tour Fire - 1.25
100% Satisfaction Guarantee: At Mansion Tennis, we want to be sure that the item you choose is the right one for you. Within 30 days of delivery of your order, you may return any merchandise purchased from Mansion Tennis in its original condition with your email order confirmation or packing slip. Restocking fees may apply. On items over $275 shipping within the US, we will even arrange free pick up or pay for returns shipping.