Description
1. Single weight: about 30 grams for round ones and about 50 grams for square ones
2. Single length: about 12 mm for square and 10 mm for round
3. Surface treatment: galvanized
4. Material: 45 steel heat treatment
5. Standard: Metric
6. Features: exquisite and compact, easy to carry, versatile, galvanized surface is not easy to rust, strong and wear-resistant, durable
