Two of a Kind contact lens in Singapore only $2.99 for 10 pair when you first subscribe to them.

Plans you can choose from

$50 for 1 Month Supply (30 pairs)
2 x sleeves @ $25 per sleeve
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$92 for 2 Month Supply (60 pairs)
4 x sleeves @ $23 per sleeve (save 8%)
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$126 for 3 Month Supply (90 pairs)
6 x sleeves @ $21 per sleeve (save 16%)

Subscribe for $2.99 10 pairs contact lens