Based on this product's specifications, here are some alternatives and similar models
Standard kettlebell HMS 12 kg KNV12 — cast iron, black
Summary description:
HMS Fitness KNV12 is a standard 12 kg kettlebell made of cast iron with a black finish. Designed for strength training, functional workouts and home or gym use, it suits swings, presses, squats and conditioning drills. Solid cast-iron construction provides consistent weight distribution and durable performance for regular training.