A snap-lock secures a swing-away side support in its working position and releases it when someone needs to move it out of the way for a transfer. It is the part that lets a support be both reliable in use and quick to clear.
Where a child is transferred several times a day, a positive lock matters: the carer can hear and feel that the support has re-engaged. It also stops a support drifting out of position during the day, which is what erodes a seating prescription over time.
Snap-locks are a wearing part, so a spare is worth holding where a chair is in daily school or respite use.






