“Natural” materials (Kenya only)

Smaller size (more discreet, may dissolve faster, less painful to insert)

Contains cholesterol (Senegal only)

More difficult to palpate due to small size

More difficult to insert and remove multiple pellets

Looks more similar to existing implants (1 rod)

Easier to insert and remove if needed

Potentially easier to palpate

Larger size (more painful to insert)

Perceived brittle nature of material based on prototype

“Harder” material could be easier to palpate and/or see by others

No incision or scars for removal

18 months is not too long or too short (more common in Kenya)

High costs for removal

Side effects, especially those that might be caused by degradation

Non-hormonal portion remaining in body longer (Kenya only)

18 months not long enough (more common in Senegal)

Unable to be removed for entire duration (more common in Senegal)