For demonstrating wave motion. Helical coil of flat section tempered steel wire. Coil diameter 75mm, closed length 110mm, fully extended 5m.
There are no reviews yet.
Your email address will not be published. Required fields are marked *
This field is required.
Name *
Email *
Save my name, email, and website in this browser for the next time I comment.
Reviews
There are no reviews yet.