How do we know what size to ?
1) Measure the diameter of the handle at the widest point on the grip
2) Use shrink wrap that is slightly larger
3) Most heat shrink for fishing rods will have a final shrink diameter, for instance, reduces by 1/3 or by 1/2 max

Package :
1 Piece 30mmo or 35mm diamater (size of the tube before shrinking)1 meter/39Inch length

Kindly remind:
1) Heat is the best way in my opinion.(Heat are relatively inexpensive on )
2) Used hair dryer should work but it may take longer
3) Used,torch, lighter before you need to be more indirect with the flame or can melt it

【Shrinkage Ratio and Temperature】Diameter thermal shrinkage ratio:2:1 of fishing rod grips; lengthwise shrinkage less than 8% ; shrinkage temperature60 ℃~105 ℃, the initial shrinkage temperature is 70 ℃,the minimum complete shrinkage temperature is 110 ℃
【Easy to Use】The tube shrunk down perfectly a heat . Another ways ,use a hair dryer then poured boiling water over it
【Advantage】Thick material,fit and shrinkage good, add some nice grip, grippy and non-slip with wet hands;heat shrink grip is flexible, soft, shrink fast, stable, skid-resistant; the heat shrinkable tube with non slip, waterproof and insulation characteristics
【Wide Application】Heat shrink handle wrap to cover the handles of bypass loppers; replace hand coushions on crutches; to wrap crutch hand pads ; to wrap hockey stick grip ;to wrap fishing rods; to wrap sport grip ;to put on motorcycle grips; grips to down tubes and base tube (control bar) of hang-glider; fit on old hammer handles, wooden splintered rack handle and some of garden tools; use to cover old sticky handgrips ;use to cover roof rack bars ; ping pong paddle handle cover...
【Storage】Please unused rod handle shrink wrap in a cool place out of the sun.Great for fishing rod handles on salt and fresh water,hammer handles,cork handles, aluminum pipe,on the EVA foam handles, lawn tools,pvc pipe...