Road bike Inner Tube 700 x 18/23c . Presta Valve type 60mm in Lorong 6 Toa Payoh, Northeast Singapore for sale

the sale is for 2 inner tubes, unused in box
for 700 x 18/23c
Presta Valve type
60mm protrusion
for use with 700 x 18/23c tire markings (still ok for 700 x 25c tires)
( not to be inflated into 700 x 32/35/38c , do so at your own risk as it is over-stretched on larger tires )
------------------------ DEALING DETAILS ------------------------
Sms: 9-six-7.zero-9-nine,six-2
( mention "Inner Tube 700c" in sms . say time you would collect . choose location 1 or 2)
Time: try fit time you propose; but 3pm~7pm not always available
Deal location: Toa Payoh
if by own transport ==> ST-Microelectronics Lor4 sidelane / Chung Hwa Chinese Medical (postcode 319521 , 319522 , 319191)
if by public commute ==> HDB Hub/Bus/MRT Complex , postcode 310530