UNIFAMILY 10 LB Diving Training Brick, Black Heavy-Duty Rubber Weight Block, Underwater Fitness Equipment for Swimming, Lifeguard Training & Free Diving, Summer Swimming Pool Safety Accessories

["Heavy-Duty Rubber Construction: Made of thick, high-density rubber for long-lasting durability. This 10 LB diving brick is waterproof, chlorine-resistant, and built to withstand heavy daily use without cracking, breaking. The solid black design ensures reliable weight performance in pools and open water","Perfect 10lb Weight for Training: At a stable 10 pounds, this weighted brick provides ideal negative buoyancy to help swimmers and divers build strength, improve breath-holding ability, enhance body control, and increase endurance. Great for consistent, progressive training drills","Safe, Smooth & Comfortable Design: Features smooth edges and a skin-friendly surface that is comfortable to hold and carry. The non-slip rubber texture offers a secure grip even when wet, making it safe for long training sessions, underwater walking, and lifeguard rescue practice","Versatile for Swimming & Diving Training: Ideal for competitive swimming, free diving, lifeguard certification drills, underwater endurance, and kick practice. Suitable for swim teams, diving schools, coaches, recreational swimmers, and professional trainers alike","Portable & Practical Black Design: Compact size and solid black finish make it easy to carry in swim bags and low-profile for professional use. No complicated setup—simply grab and go for effective, on-the-go water training anytime, anywhere"]