Shower Doctor TV: How to replace a shower head holder/slider bracket?

how to replace a shower rail with two different style attachments

Bristan 1901/Colonial 18mm Shower Head Holder (Chrome) - SLID 06488C - Bristan - Shower Head Holders

[Height & Angle Adjustment]: shower slide holder can freely move and get locked. Shower capable of 360° rotation can meet the needs of each family

Shower Slide Bar Adjustable Handheld Shower Head Holder Wall Mount - 15inch All-Metal Shower Head Slide Bar Compatible with Bathroom Drill Free Glue

Triton Oval Shower Head Slider/Holder (Chrome) - 22010730 - Triton - Other Accessories

Shower Head Holder for Slide Bar Adjustable,18-25MM O.D. Hand Shower Bracket Holder for Slide Bar Slider Clamp Bathroom Replacement,360 Degree Rotation Sprayer Holder ABS Chrome

Shower Head Holder 2 Pack Strong Adhesive Adjustable Handheld Shower Wand Holder Drill Free Wall Mount Shower Bracket by Lofekea

MX Universal Shower Head Holder - 19mm (White) - HJ0 - MX Group - Shower Head Holders

Troubleshooting Dual Shower Head - Shower Holder Tension

Shower Slide Bar with Handheld Shower Head