Did someone face this issue before with Nittaku Fastarc G1? A black spot developed on the rubber. And it's been just 1 month. : r/tabletennis
Nittaku Fastarc G-1 Table Tennis and Ping Pong Rubber, Choose Color & Thickness | eBay
Nittaku Fast Arc S-1 – Tabletennisstore.us
Nittaku-Fastarc G-1 [nitt-FAS G-1] - US$39.38 : 徐老師桌球郵購園地-I Love Ping Pong Web Shop
Nittaku Fastarc G1 performance review - YouTube
Nittaku Fastarc G1 Andro impuls - YouTube
Amazon.com: Nittaku Fastarc G-1, goma de tenis de mesa, espinillas para juego ofensivo, fabricado en Alemania (rojo, 2.0) : Deportes y Actividades al Aire Libre