1. The net weight of a 20" product is approximately 3.2kg, a 24" product is approximately 4.0kg, a 26" product is approximately 4.5kg, and a 28" product is approximately 5.0kg;
2. The packaging weight of a 20" product is approximately 4.0kg, a 24" product is approximately 5.2kg, a 26" product is approximately 5.8kg, and a 28" product is approximately 6.6kg.