
Exerciser devices include eggs, Ben wa balls (rin-no-tama), vaginal cones, weights, and electrical stimulators and could provide biofeedback devices but are not always recommended.
Internet-of-things (IoT) applications include kGoal Smart Kegel Trainer, Skea - exerciser and a video game, Elvie - kegel balls and exercise tracker for pelvic floor and OhMiBod's LoveLife Krush - a "smart" Internet-connected kegel exerciser that doubles as a sex toy.
Note potential problems if pushing the device down, mis-training muscles or over-tensing the pelvic floor that can lead to a condition called hypertonicity.