Hi Raza,
E-liquid of all PG/VG ratios will work with these cartomizers; however, keep in mind that thicker e-liquids with higher VG ratios will not wick as efficiently as e-liquids with higher PG ratios. For thicker e-liquids, we recommend the 2 or 3-hole Tank Cartomizers.
Shipping times will vary. USPS estimates 7-25 business days for First Class International packages and 6-10 business days for Priority International packages.
Best regards.
Brad