Class A2 Riverbank Laboratories tuning forks are made of ½” x 1 ¼” (1.3cm x 3.2cm) aluminum alloy bar that is non-magnetic, will not rust, corrode or tarnish, and require no plating.  All Class A2 tuning forks are furnished with turned smooth aluminum handles for easy handling, providing a lifetime of comfortable usage.

Long favorites of the medical industry for their consistent performance and durability, they are manufactured from 128 to 4096 Hz.  Frequencies of 165 Hz and 256 Hz can be provided with a single fork that is calibrated with removable weights. Tuning forks from 256 Hz to 4096 Hz are furnished without weights.