Send Colors To Sql Server?

I have 15 checkboxes in my vb.net form they have been set by following code

Private Sub form1_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles MyBase.Load
SetControlArray()
End Sub
Sub SetControlArray()

[code]....

My question is i want to send the colors filled in the check boxes into the sql server table throug insertsql statement. at the same time the name in the textbox24 is also added to the sql table. The table has 2 fields models and colors if one model is inserted into the table cell and 5 colors are selected in the check boxes the table is fill with the name of the model is same and colors are different my trial code is as follows but it is wrong and only one row is inserted into the table

Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
Dim insertsq As String
Dim a As Integer
For a = 0 To 14

[code]....