Ronbus Quanta R4.16The Pickleball Paddle The Ronbus Quanta R4. 16 is a 16mm hybrid shaped pickleball paddle from the Quanta foam core series, designed for players who want high spin, stability, and controlled power at a standout price. Built with a full EPP foam core, EVA rings, and TPE elastomer inserts, it delivers excellent vibration dampening, added pop, and a smooth, consistent feel across the paddle face. The raw Toray T700 carbon fibre face features a coarse peel