- Material: nickel-free stainless steel. - Strength category: spring hard · 1800–2000 N/mm2. Contents: - 30 x noninium adams clasps, length 7 mm. - 30 x noninium adams clasps, length 8 mm. - 40 x noninium adams clasps, length 9 mm. - 60 x noninium adams clasps, length 10 mm. - 60 x noninium adams clasps, length 11 mm. - 30 x noninium adams clasps, length 12 mm. - 1 x ruler. **For further product information, please contact Chat Support**