- Waddlers brand Nurse Rubber Duck, - authentic design of caring medical nurse expressed rubber duck, Always ready and cheerful nurse duck on 24-7-365 without ceasing, - happy squeker nurse duck, - color yellow, - size 3.5" L x 3" W x 3.5"H, - Product Safety: Meets and exceed CPSIA, EN71 & Cal Prop 65 Safety Regulations, free of all heavy metals and 7 Phthalates. - Originator, place and time: Steve S. H. Chen, Fremont, CA in 2001.