Montréal (Québec) Canada
Muscles (or McKibben actuators) are made of silicone tubing wrapped
with plastic mesh to avoid explosion. Both end are made with Acetal
and grooved to retain the silicone tube with common plumbery clips.
The air connector is a 90-degree swivel fitting for a standard 1/4"
Compressed air, 20 PSI (1/4")