NIVIA TRAINER Volleyball The Ultimate Practice Partner. If youre looking for a volleyball that can keep up with your training sessions, the NIVIA TRAINER Volleyball is your go-to choice. Designed with a shock-absorbing EVA layer, this ball is gentle on the hands yet tough enough for outdoor play. Whether youre honing your skills or enjoying a casual game, NIVIA TRAINER Volleyball’s long-lasting rubber construction ensures durability at an unbeatable price!