Glasses - Centra Lens Holder 37mm

•  This attachment allows an lens to install stable and variable front of the iris
• The distance of the lens to the eye can be adjusted 
• Because the correction glass so perfect and always the same in the line of sight is brought, this promises attaching some advantages
• Available in 23 mm or 37mm

CAUTION:

• After sports regulations of the DSB ans ISSF using the monocle is allowed.