Here is a list of items your therapist might suggest that you buy.
CanDo Adjustable Ankle Weight, Blue, 10 Pound
TheraBand - 26100 FlexBar
Tiger Tail 18in Massage Stick Portable Roller, Handheld, Deep Tissue Foam Roller, Body Massage and Myofascial Release Tool for Legs, Neck, Calves, Thighs, Shins & Back, The Orginal 18, Made in USA, Orange Black
All Pro Weight Adjustable Ankle Weights, 10-lb pair (up to 5-lbs per ankle)
Cando 30-2100 White Round Foam Roller, 6" Diameter x 36" Length