The economical polysester tape is still available on a 50m roll
RockShox Reverb Spare - Bulk Foam Ring Lower Sealhead Qty 10 - Reverb and Reverb Stealth A2 And B1
RockShox Reverb Spare - Bulk Bushing and O-Ring Inner Sealhead Qty 10 (Includes 10 Bushings and 10 O-rings) - Reverb and Reverb Stealth B1