Abstract: Swim goggles comprising first and second substantially rigid frames each having a base portion, an eye lens portion, an inner end portion and an outer end portion. The swim goggles further comprise a bridge for engaging the inner end portions of the first and second frames. The swim goggles further comprise a head strap having first and second end portions having a plurality of tooth portions. The swim goggles further comprise first and second connection mechanisms disposed at the outer end portions of the first and second frames, respectively. Each of the first and second connection mechanisms comprise a strap passage way adapted to receive the first and second end portions of the head strap, respectively. Each of the first and second mechanisms further comprise a unitary resilient pawl comprising a median portion and first and second finger portions having end portions engaged with the base portion at a position adjacent to and below the eye lens portion.

Abstract: Sleeves for use in systems for supporting platform-like objects on casters and posts and described. The sleeves support caster-and-post junctions and inhibit deformation of the stems of the casters and the ends of posts in directions radially outward from the longitudinal axes of the stems and posts.